Review the Image Provided of a Trichrome Stained Fecal Specimen

Review the image provided of a trichrome stained fecal specimen.
Source: CDC
How is the structure in the center of the image best distinguished from an amoeba?

A) The image is an amoeba.
B) The nuclear material: cytoplasm ratio is smaller in human cells.
C) The nuclear material: cytoplasm is greater in human cells.
D) White blood cells usually only have one nucleus.